Convection
Trending Questions
Q. What is the prominent mode of heat transfer within a liquid when it is heated?
- Conduction
- Convection
- All the modes are dominant
- Radiation
Q.
Liquids are heated by conduction and radiation.
- True
- False
Q. An empty bottle is fitted with a balloon on its mouth. The balloon will expand when it is placed in _______.
- Normal water
- Hot water
Q.
Write two applications of each of the following in day-to-day life: Convection
Q.
Statement given below is incorrect. Write the correct statement.
Convection currents are possible in solids.
Q.
A saucepan of water at room temperature is heated by a burner.
(a) Name the process by which heat is communicated to water.
Q. As the temperature of a gas increases, the volume occupied by the gas __________.
- remains constant
- can increase or decrease
- increases
- decreases
Q. Give reason why the cooling of refrigerator is made at the top